package collect;
/*
*Demo1为collection接口的直接实现类
 */
import java.util.Iterator;

public class Collection implements java.util.Collection {
    @Override
    public int size() {
        return 0;
    }

    @Override
    public boolean isEmpty() {
        return false;
    }

    @Override
    public boolean contains(Object o) {
        return false;
    }

    @Override
    public Iterator iterator() {
        return null;
    }

    @Override
    public Object[] toArray() {
        return new Object[0];
    }

    @Override
    public Object[] toArray(Object[] a) {
        return new Object[0];
    }

    @Override
    public boolean add(Object o) {
        return false;
    }

    @Override
    public boolean remove(Object o) {
        return false;
    }

    @Override
    public boolean containsAll(java.util.Collection c) {
        return false;
    }

    @Override
    public boolean addAll(java.util.Collection c) {
        return false;
    }

    @Override
    public boolean removeAll(java.util.Collection c) {
        return false;
    }

    @Override
    public boolean retainAll(java.util.Collection c) {
        return false;
    }

    @Override
    public void clear() {

    }
}
